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No calculus (Posted on 2002-07-31)

Difficulty: 4 of 5

Define:
d/dx(f(x)) = f'(x)

where f'(x) = gradient (or slope) of f(x) at x = x.

Prove that:
d/dx(x^2) = 2x

without using calculus.

See The Solution Submitted by Cheradenine

Rating: 3.2000 (10 votes)

Comments: ( You must be logged in to post comments.)

	Subject	Author	Date
	Puzzle Solution	K Sengupta	2024-01-29 07:18:39
	re: OMG :'(	Ravi Raja	2003-02-26 04:55:56
	OMG :'(	Irina	2003-02-25 12:22:07
	re: Standard solution	Cheradenine	2002-08-04 22:04:55
	Standard solution	friedlinguini	2002-08-04 13:15:17
	re(6): Hmmmm	Cheradenine	2002-08-02 05:09:55
	re(5): Hmmmm	friedlinguini	2002-08-02 04:50:44
	re(4): Hmmmm	Cheradenine	2002-08-01 22:09:34
	re(3): Hmmmm	TomM	2002-08-01 08:22:01
	re(2): Hmmmm	friedlinguini	2002-08-01 06:50:08
	re(2): Hmmmm	Cheradenine	2002-08-01 06:22:21
	re: Hmmmm	TomM	2002-08-01 05:53:22
	re: hint(2)	TomM	2002-08-01 05:41:19
	re(2): Dumb question	levik	2002-08-01 05:28:24
	re(5): Err....	Nick Reed	2002-08-01 05:04:05
	re: Dumb question	Cheradenine	2002-08-01 04:38:04
	Dumb question	levik	2002-08-01 04:17:03
	hint(2)	Cheradenine	2002-08-01 03:44:21
	re(4): Err....	friedlinguini	2002-08-01 03:14:42
	Hmmmm	Nick Reed	2002-07-31 22:38:33
	Hint	Cheradenine	2002-07-31 22:21:18
	re(3): Err....	Cheradenine	2002-07-31 22:19:13
	re(2): Err....	friedlinguini	2002-07-31 18:22:11
	re(2): Err....	levik	2002-07-31 03:49:36
	re: Err....	Cheradenine	2002-07-31 02:30:35
	Err....	levik	2002-07-31 01:45:38

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